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I like creating electronics related YouTube videos. I mostly buy faulty gear from Ebay and make a repair video of it, but it's expensive and so with your help maybe I can continue to do so. Your support would be greatly appreciated.


Quick News.............

06/04/19 - PDVS2's are available NOW! I have also taken the opportunity to make some tweaks to my online shop - Added multiple currency's & tweaked some of the forms when purchasing so a bit more readable!

31/03/19 - PDVS2's will be available within a day or so, the new batch is all tested and ready, I am just working out a couple of teething issues with my new shipper (UPS). Also, just a note, this site now automatically redirects to an SSL connection (https) in order for the UPS integration to work properly.

07/10/18 - Video Blog #038 updated with some photos of the app running in various modes.

01/07/18 - Donate to IanJohnston.com using PayPal here, or pledge a donation via Patreon here.

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Latest Articles.............

Video Blog #046 - LeCroy WaveSurfer 422 Oscilloscope Repair

A viewer responded to my call for faulty test equipment and here we have a LeCroy WaveSurfer 422 oscilloscope with power supply problems.
Date: 18/05/2019

Video Blog #045 - New product - PDVS2mini, Donated Hardware & Laser Cutter Bodge!

May 2019 news = New product PDVS2mini, Donated Hardware & Laser Cutter Bodge!
Date: 05/06/2019

Video Blog #044 - Hakko FA-400 Smoke Absorber Modification

The Hakko FA-400, and it's clones, don't work that great at any kind of distance to the work in hand......so I modified mine to make it a lot better and more convenient to use on the workbench.
Date: 25/03/2019

Video Blog #043 - Flir C2 Optical Modification

With MSX technology the Flir C2 is great, however, using it close-up the IR image and the optical images don't line up. I decided to 5 minute hack my C2 and get the images to converge better at very close distances, ideal for electronics use.
Date: 16/02/2019

Video Blog #042 - HP3457A Backlighting Mods

Unhappy with the lighting on the display of my HP 3457A I had the idea to add LED backlighting to the LCD.....which doesn't support backlighting without major surgery!
Date: 11/01/2019

Video Blog #041 - HP3457A DMM Repair & GPIB Software Overview

Purchased from Ebay as "doesn't power up", in this video I get to the bottom of the 'fault', fix it, and then give an overview of the GPIB software I wrote to use with it and other test instruments.
Date: 23/12/2018

Project #025 - GPIB Windows Software

Some time ago I messed with an Excel spreadsheet and some VBA macros to enable my Win10 PC to gather GPIB data and present it on a graph., it worked, but I do find it a little unreliable. I needed my own app!
Date: 25/11/2018